Switch away from sphinx.parsers which isn't available in sphinx 1.3.5 on Read The Docs.

tannewt · tannewt · commit 7ebc9a4511d5 · 2016-10-19T10:53:37.000-07:00
diff --git a/c2rst.py b/c2rst.py
@@ -1,7 +1,7 @@
-import sphinx.parsers
+import docutils.parsers
 import docutils.parsers.rst as rst
 
-class CStrip(sphinx.parsers.Parser):
+class CStrip(docutils.parsers.Parser):
   def __init__(self):
     self.rst_parser = rst.Parser()
 
